20332221229 has 2 divisors, whose sum is σ = 20332221230. Its totient is φ = 20332221228.

The previous prime is 20332221227. The next prime is 20332221253. The reversal of 20332221229 is 92212223302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11631622500 + 8700598729 = 107850^2 + 93277^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332221229 - 2¹ = 20332221227 is a prime.

Together with 20332221227, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20332221197 and 20332221206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20332221227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166110614 + 10166110615.

It is an arithmetic number, because the mean of its divisors is an integer number (10166110615).

Almost surely, 2^20332221229 is an apocalyptic number.

It is an amenable number.

20332221229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332221229 is an equidigital number, since it uses as much as digits as its factorization.

20332221229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20332221229 in words is "twenty billion, three hundred thirty-two million, two hundred twenty-one thousand, two hundred twenty-nine".